Self-oiling hinge pintle



R. E. PEARY. SELF OILNG HINGE PNTLE. APPLICATION FILED IUNE I6. I92I.

Patented @et 24, w22,

All

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ation/Icq Patented ct. 24., 1922.

unl-:D STATES ROBERT E. PEARY, 0F WASHINGTON, DISTRICT 0F COLUMBIA.

SELF-OILING HINGE PINTLE.

. Application led June 16, 1921.

To all whom t may cof/wem.'

Be it known that I, ROBERT E. PEARY, citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Self-Oiling Hinge Pintles, of which the following is a specification.

My device relates to hinge intles and partlcularly to that type of hinge pintle which is adapted to be self oiling.

An object of my invention is to provide a hinge pintle that will maintain the hin es oiled for a long period of time and will istribute the oil uniformly to all parts of the hinge.

Another object of my invention is to construct a hin e pintle accomplishing the above outlineobject and which is of sturdy construction, simple to manufacture and constructed with a minimum number ol parts. j

In my invention I have formed a hinge pintle havin a central longitudinal opening extending trough the head of the pintle and the body proper. The head and the pintle are preferably formed integral and the opening in the head is ad'acent to the longitudinal opening in the ody. There are transverse openings allowing seepage of the oil from the interior to the exterior of the hin e pintle thus oiling the hinges. To accomp ish the even distribution of the oil I have provided as a part of my structure a hollow wick adapted to fit within the longitudinal opening of the body of the hinge.

With these and other objects in view which may be incident to my improvements, the invention consists in the parts and combinations to be hereinafter set forth an'd claimed, with the understanding that the several necessary elements comprising my invention, may be varied in construction, proportions a d arrangement, without ldepartin from he spirit and scope of the appende claims.

In order to make my invention more clearly understood, I have shown in the accompanying drawings means for carrying the same into practical effect, without limiting the improvements in their useful applications to the particular constructions, which for the purpose of explanation, have been made the subject of illustration.

In the drawings:

Figure l is a perspective View of my hinge pintle as applied to a hinge.

Serial N0. 478,106.

Figure 2 is a longitudinal cross-section through the hinge pintle.

Fig. 3 is a cross-section through the line 3 3 of Fig. 2.

Fig` 4 is a cross-section of a modification of my device employing a solid wick instead of a hollow wick.

In the drawings isshown a hinge pintle having a head 1 and a body portion 2. The head l is preferably integrally formed with the body portion 2 and has a tapered central aperture 3 passing therethrough. The tapered central aperture at its lower end meets and joins a central longitudinal opening 4 through the body 2. The body 2 is provided with sets of transverse openings 5 extending from the longitudinal opening 4 to the exterior of the pintle. I have shown these vlongitudinal openings as extending in four direct-ions, as plainly seen bythe cross sectional view in Fig. 3.

It is to be understood that I may employ any other number of openingsthan four in each set if I so desire, but I have shown four in the drawings simply for purposes of illustration. Under certain conditions it will be found that more than four or less than four will be the proper number for the existing conditions.

Disposed within the central longitudinal opening 4 is a hollow wick 6 extending thev length of the central longitudinal opening.

In operation oil is dropped into the opening 3 in the head l and this oil is absorbed by the hollow wick 6 and evenly distributed through the entire wick so that a portion of the oil may seep out of each of the transverse openings 5 to oil the hinge. I yhave found that having these openings 5 located between the joints of the hinges as is indicated in Fig. 1 produces better lubrication than having these openings located adjacent the joints of the hinges. v

In Fig. 4 is illustrated a modification employing a solid wick 7' instead of a hollow wick. The operation is similar to that in the modification just previously described and for certain grades of oil this type of wick is found to be the most eiicient.

While I have shown and described the preferred embodiment of my invention, I wish it to be understood that I do not confine myself to the precise details of construction herein set forth, by way of illustration, as it is apparent that many modifications and variations may be made therein, by

those skilled in the art, without departing from the spirit of the invention, or exceeding 4the scope of the appended claims.

I claim as'my invention:

l. In a selfoilng pintle, the combination of a head with an opening therein, with a body having a central longitudinal openin adjacent to the opening in the head an transverse openings anda wick in the longitudinal opening. y

2. In a selfoiling pintle, the combination with a head with an opening therein, of a body integrally formed with the head and having a central longitudinal opening and transverse openings and a wick in the Iongitudinal opening.

3. In a self oiling pintle, the combination with a head with an opening therein, of a body having a central longitudinal opening and transverse openings and a hollow wick in the longitudinal opening.

l. In a self oiling pintle, the combination of a head with an opening therein, with a body integrally formed with the head and having a central longitudinal opening andtransverse openings and a hollow wick in the longitudinal opening.

5. In a self oiling hinge pintle, the combination of a head with an opening therein, with a body integrally formed with the head and having a central longitudinal opening and transverse openings adapted to lie between hinge joints and a hollow wick in the longitudinal opening.

6. In a self-oiling hinge pintle, the combination of a head with an opening therein, with a bod having a central longitudinal opening adjacent to the opening in the head and a series of transverse sets of openings,

and a wick in the longitudinal opening.

ROBERT E. PEARL 

